Sebaceous cell carcinoma of the external auditory canal.
Sebaceous cell carcinoma is an extremely uncommon tumor; fewer than 100 cases have been reported, with most of these lesions arising in the meibomian glands in the tarsal plates. Other sites in the head and neck have been noted, but this is the first reported case originating in the external auditory canal.
D000230:Adenocarcinoma / Q000473:pathology*; D000368:Aged; D003937:Diagnosis, Differential; D004424:Ear Canal; D004428:Ear Neoplasms / Q000473:pathology*; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D012626:Sebaceous Gland Neoplasms / Q000473:pathology*